It has been a while since my first post about the ESP8266 (see “Cheap and Simple WiFi with ESP8266 for the FRDM Board“). The ESP8266 is a new inexpensive ($4.50) WiFi module which makes it easy to connect to the network or internet. Finally this week-end I have found the time to write up a tutorial:
how to implement a WiFi web server for the ESP8266 WiFi module and the Freescale FRDM-KL25Z board:
I want to make some noise with this post!!! This tutorial is about adding music and sound capabilities to the Freescale Freedom board, and to have a lot of fun with it :-). I need this ability for a larger project working on for a while. But I thought I share that sub-part how to play sound files. So with this tutorial I can turn my Freescale Freedom board into a music or sound player :-). And adding sounds is a cool way for any project, and as the music is stored on an SD card it fits easily hours of music or sounds.
MP3 Player with FRDM-KL25Z and Adafruit Music Maker MP3 Shield
Three men: a project manager, a software engineer, and a hardware engineer are helping out on a project. About midweek they decide to walk up and down the beach during their lunch hour. Halfway up the beach, they stumbled upon a lamp. As they rub the lamp a genie appears and says “Normally I would grant you three wishes, but since there are three of you, I will grant you each one wish.” Continue reading →
From time to time it is good to do some cleanup work: what has grown organically sometimes needs some cuts and moves. The same applies to the McuOnEclipse GitHub repository (https://github.com/ErichStyger/mcuoneclipse) which has grown to 522 MByte, 8364 files and 1444 folders. I already moved out the Processor Expert component releases (see “McuOnEclipse Releases on SourceForge“). Time to cleanup and move something else: the Processor Expert component sources.
I have received several requests to post a quick note when there is a new release (16-Nov-2014) of the McuOnEclipse components on SourceForge (see “McuOnEclipse Releases on SourceForge“). I have published today a new release, and with following major improvements:
USB support for Kinetis KL24Z
FatFs now features the latest Elm-Chan v0.10c release
Backspace support in Shell
Configuration item in FreeRTOS for Percepio Trace Hooks
I have several applications where I store application specific information in the microcontroller FLASH memory (see “Configuration Data: Using the Internal FLASH instead of an external EEPROM“). I have run into issues recently with the Segger J-Link GDB server as by default it does *not* erase all the FLASH memory. So the question is: How can I erase all (or part) of the FLASH memory with GDB (e.g. in Kinetis Design Studio or in Eclipse)?
On a train to a large computer convention, there was a bunch of engineers and a bunch of managers. Each of the managers had a train ticket. The group of engineers had only ONE ticket for all of them. The managers started laughing, figuring the engineers were going to get caught and thrown off the train.
When one of the engineers, the lookout, said, “Here comes the conductor,” all of the engineers went into the bathroom. The managers were puzzled. Continue reading →